Restructuring Costs (Reconciliation Of Company's Liability For The Restructuring Costs) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2012		Dec. 31, 2011
Restructuring Cost and Reserve [Line Items]
Balance at beginning of year					$ 1,562		$ 6,611
Costs charged to expense	0	[1]	399	[1]	3,687	[1]	10,220	[1]
Payments					(5,193)		(15,011)
Balance at end of period	56		1,820		56		1,820
Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning of year					1,271		6,386
Costs charged to expense					3,687		7,123
Payments					(4,902)		(12,017)
Balance at end of period	56		1,492		56		1,492
Other Costs [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning of year					291		225
Costs charged to expense					0		3,097
Payments					(291)		(2,994)
Balance at end of period	$ 0		$ 328		$ 0		$ 328

[1] Item is not included in segment operating income, but is included in consolidated operating income.